[Zn(2,3,5,6-tetrakis(2-pyridyl)pyrazine)Cl2] | 149124-18-5

• 英文名称: [Zn(2,3,5,6-tetrakis(2-pyridyl)pyrazine)Cl2]
• 英文别名: [Zn(Tppz)Cl2]；{tetra(2-pyridyl)pyrazineZn(II)Cl2}
• CAS: 149124-18-5
• 化学式: C₂₄H₁₆Cl₂N₆Zn
• 分子量: 524.727
• InChiKey: QXNCDADTVOUMIX-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  四-2-吡啶基吡嗪 、 zinc(II) chloride 在 ethylene glycol 作用下， 以 氯仿 、 丙酮 为溶剂， 以85%的产率得到[Zn(2,3,5,6-tetrakis(2-pyridyl)pyrazine)Cl2]
  参考文献：
  名称：

  Mononuclear zinc(II) complex with 2,3,5,6-tetra(2-pyridyl)pyrazine

  摘要：

  Complex [Zn(Tppz)Cl-2] (I), where Tppz = 2,3,5,6-tetrakis(2-pyridyl)pyrazine, has been synthesized and characterized by elemental analyses, IR, H-1 NMR, cyclic voltammetry, and electronic spectral studies. Solid state structures of the complex have been determined by single-crystal X-ray crystallography. The structural determination shows that the mononuclear complex I is a 1D coordination polymer. Also an ORTEP drawing of complex I shows that the coordination geometry around the Zn(II) center is slightly distorted from regular square-based pyramidal. Crystal data for I: triclinic, spase group P <(1)over bar $>, a = 10.171(2), b = 10.3550(13), c = 12.239 (2) angstrom, alpha = 64.839(9)degrees, beta = 85.736(8)degrees, gamma = 77.842(10)degrees, V = 1140.3(4)angstrom (3), Z = 2.

  DOI：

  10.1134/s1070328411020096

文献信息

• Crystal and molecular structures of Cu(II) and Zn(II) complexes of 2,3,5,6-tetra(2-pyridyl)pyrazine (TPPZ): an old ligand revisited
  作者：Marion Graf、Bronwyn Greaves、Helen Stoeckli-Evans

  DOI：10.1016/s0020-1693(00)82931-x

  日期：1993.2

  Copper and zinc complexes of 2,3,5,6-tetra(2-pyridyl)pyrazine (TPPZ) have been prepared. The reaction of Cu(ClO4)2 with TPPZ leads to a dinuclear complex where the ligand is bis-tridentate (crystal data: C24H28N6O22Cl4Cu2, monoclinic, space group P2(1)/n, a = 7.855(4), b = 16.267(6), c = 14.860(3) angstrom, beta = 102.91(3)-degrees, Z = 2, 2522 reflections with I > 2.5sigma(I), R = 0.053). In an acidic medium the same reaction gave a mononuclear dimeric complex where TPPZ is mono-tridentate. The Cu ... Cu separation in the dimer is 3.446(3) angstrom and the Cu...Cl bridging bond is 2.682(2) angstrom. The molecules are stacked up the a axis with a short Cu ... Cu inter-stacking distance of 3.854(4) angstrom. One of the non-coordinated pyridine N atoms is protonated and hydrogen bonded to a perchlorate O atom (crystal data: C24H17N6O8Cl3Cu, triclinic, space group P1BAR, a = 6.873(7), b = 12.753(5), c = 16.252(7) angstrom, angstrom = 69.29(3), beta = 90.10(4), gamma = 83.57(4)-degrees, Z = 2, 3436 reflections with I > 3sigma(I), R = 0.050). The reaction of TPPZ with an excess of ZnCl2 gave a neutral mononuclear five-coordinate complex where TPPZ is mono-tridentate (crystal data: C24H16N6Cl2Zn, monoclinic, space group P2(1)/n, a = 14.744(1), b = 7.245(1), c = 21.253(2) angstrom, beta = 104.51(1)-degrees, Z = 4, 3340 reflections with I > 2.5sigma(I), R = 0.036).